The Definity TN1654 DS1 Converter is a replacement for TN574 DS1 converter circuit pack in R8r or later systems.
The Definity TN1655 Packet Interface provides the communication path between the SPE and the packet bus in the PPN.
The Definity TN2181 16-Port Digital Circuit Pack is a 16 Digital Communications Protocol (DCP) ports that can connect to 2-wire terminals such as the 6400 and 8400 series digital voice terminals and 302B1 or 302C.
The Definity TN2182 Tone Clock integrates the tone generator, tone detection, system clock, and synchronization functions onto one circuit pack for use in standard, high, and critical reliability systems.
The Definity TN2182B Tone Clock integrates the tone generator, tone detection, system clock, and synchronization functions onto one circuit pack for use in standard, high, and critical reliability systems.
The Definity TN2182C Tone Clock integrates the tone generator, tone detection, system clock, and synchronization functions onto one circuit pack for use in standard, high, and critical reliability systems.
The Definity TN2198 ISDN-BRI 2 Wire U Interface allows connection to the ANSI standard 2-wire U-interface 2-wire interface from the TN2198 connects to an NT1 network interface.
The Definity TN2214B 2-Wire Digital Circuit Pack provides 24 DCP ports that can connect to 2-wire terminals such as the 6400, 8400, or 9400 series digital voice terminals and the 302C attendant console.
The Definity TN2224 2 Wire Digital 24-Port Circuit Pack provides 24 DCP ports that can connect to 2-wire terminals such as the 6400, 8400, or 9400 series digital voice terminals and the 302C attendant console.
The Definity TN2224B 2-Wire Digital 24-Port Circuit Pack provides 24 DCP ports that can connect to 2-wire terminals such as the 6400, 8400, or 9400 series digital voice terminals and the 302C attendant console.
The Definity TN2224CP 24-Port Digital Circuit Pack provides 24 DCP ports that can connect to 2-wire terminals such as the 6400, 8400, or 9400 series digital voice terminals and the 302C attendant console.
The Definity TN2302AP IP Media Processor w/IP Adapter provides VoIP audio access to the switch for local stations and for outside trunks.
The TN2312BP IP server interface (IPSI) provides transport of control messages.
The Definity TN2313AP DS1 Interface Interfaces a DS1 trunk to the switch backplane.
The TN2401 Net/Pkt Interface (R9si or later) is in R9si systems, the TN2401 Net/Pkt interface replaces the TN794.
